Other RMT for Sun/Moon's Battle Tree

[matheus.gsd]

Well, i'm not THAT competitive player, but since i decided to go Battle Tree, i tried some stuff, planning to go at least very high at its floors, so I might need some help XD
I'm planning to use at least some Pokémon i'd like to use AND it's ok/good to battle too.

@ Expert Belt
Ability: Could be better
168 HP / 252 Atk / 88 Speed
>> Naughty Nature << (i know, could be better too)
- Leech Life
- Liquidation
- Aqua Jet
- First Impression

@ Black Sludge
Ability: Merciless
252 HP / 252 Defense / 6 Sp. Defense
>> Relaxed Nature <<
- Baneful Banker
- Venoshock
- Scald
- Recover

@ Salamencite
Ability: Aerilate
6 HP / 252 Atk / 252 Speed
>> Adamant Nature <<
- Earthquake
- Dragon Claw
- Return
- Fire Fang

A friend told me it should have at least one special Pokémon, and i think about Tapu Lele, but also could run Alolan Raichu.
Tbh, if i'd need to replace someone, i think i can't replace Salamence; it saved me a lot, and has good variety moves.
Also, i'm quite loving Toxapex's Baneful Banker too, it helped me ruin lots of teams solo XD. Any suggestions?

And yes, i know Salamence should run Dragon Dance, but at Battle Tree i could never use it and make out alive, so i had to replace it. Besides, it can do lots of damage without is as well, so i'm fine with it ^^​